Sorry, yes the finals will be linear EXR, but we were using PNG as poxies in this test because of the crashes.

What does the multithread save mean? Is it something that can be fixed or is it a CPU level problem (hardware not sottware)?

I'm afraid this issue is getting worse and I'm struggling to find a solution. I'm not unable to run C4D for longer than 10 mins before getting a crash.
I'm mainly working with materials in the node editor and the live viewer when the crashes happen. I've attached the bugreport if it helps?

Any help ...

Thanks for the reply. I managed to get around it using an OSL node in the opacity channel of the shadow catching material (it was mentioned in another topic on here recently).
Refl_OSL.png

It meant I could use render layers and remove the shadow catching geometry from the reflections.
In ...

Sure, I've attached a simple scene using a free HDRI.

I think I've figured it out though... it's bringing the "floor" of the HDRI up to meet the contact shadow. Without the shadow catcher material, the object is in the centre of the HDRI.
Do you know if there's a way to stop that behaviour?

Note ...

Hi, using C4D plugin, I've notice that if I try to catch shadows the HDRI reflections seems to shift causing incorrect/offset reflections.
This is repeatable when using either a matte material ("shadow catcher" under common tab) or using the render layer system (with the shadow catcher material ...

OK, all was well with 4.05 and I thought it was stable, but moving back to 2019.5 results in the same problem
I've attached the latest bugreport if it helps? (I'm still on C4D R20)

Just to note, this is a fresh project too ,not the one that was causing issues in my last post. I'm going to downgrade ...

Update: I found a duplicate copy Octane standalone 2019.4 so removed it and reverted back to 4.05. The render is now working!
I'm assuming the clue was "duplicate definition"?

Either way, despite all the uninstalls and countless drivers, I'd obviously missed that I had two versions of standalone ...

Thanks for looking into this. It's happens on a lot of scenes from this project. They were created with v4 Octane, if that makes a difference?

It will crash even when changing some render settings, or activating the live viewer. The files seem to be rendering fine on another workstation, and as far ...

I've attached one from earlier

Hi,

I'm struggling with repeatable and constant crashes in C4D R20 right now. I've tried Octane 2019.5 and below, along with a variety of NVIDIA studio drivers going all the way back to 430.86. I've even tried the latest Game Ready driver, out of desperation.
C4D crashes when changing Octane ...